Durable posts by category

Scientific ideas

Radiative transfer and cloud structure
A primer on the relation between radiation and cloud structure or, more generally, between nonlinear processes and variability.
An idea to combat bloat in genetic programming
A text for scientist working on genetic programming (GP), with an idea that may solve the problem of bloat and thus allow the use of GP for more complex problems.
Advection of the disturbance fields in stochastic parameterisations
By advection the disturbances in a stochastic parameterisation scheme, one may be able to get sufficient spread in the atmospheric model ensemble, while keeping the amplitudes and correlations of the disturbances within physical margins.
Online generation of temporal and spatial fractal red noise
An algorithm to generate a spatially and temporally correlated field keeping only two time steps in memory.
On cloud structure
Clouds are not spheres or cubes in the sky, but are better described as fractals. However, part of the structure is also non-fractal.


Homogenisation and climate

Future research in homogenisation of climate data – EMS 2012 in Poland
A discussion on homogenisation at a Side Meeting at EMS2012
Statistical homogenisation for dummies
A primer on statistical homogenisation with many pictures.
Do you want to help with data discovery?
Repost on crowd sourcing to digitise climate data by the International Surface Temperature Initiative.
A short introduction to the time of observation bias and its correction
The time of observation bias is an important cause of inhomogeneities in temperature data.
Blog review of the Watts et al. (2012) manuscript on surface temperature trends
A fast preliminary review of an unpublished erroneous manuscript by Anthony Watts and colleagues.
Investigation of methods for hydroclimatic data homogenization
An example of the daily misinformation spread by the blog Watts Up With That? In this case about homogenization.
What is a change in extreme weather?
Two possible definitions, one for impact studies, one for understanding.
HUME: Homogenisation, Uncertainty Measures and Extreme weather
Proposal for future research in homogenisation of climate network data.
Homogenization of monthly and annual data from surface stations
A short description of the causes of inhomogeneities in climate data (non-climatic variability) and how to remove it using the relative homogenization approach.
New article: Benchmarking homogenization algorithms for monthly data
Raw climate records contain changes due to non-climatic factors, such as relocations of stations or changes in instrumentation. This post introduces an article that tested how well such non-climatic factors can be removed.
What distinguishes a benchmark?
Main answer: benchmarking is a community effort.

Empirical economics

Darwinian or Smithian competition
The understanding of competition by Charles Darwin is more complete as by Adam Smith and leads to a better understanding when markets are not most efficient.
Productivity and context
Nowadays productivity depends as much on yourself as on your environment.
Good ideas, motivation and economics
People are not just motivated by money and have a sense of fairness. A better economic theory should take this into account.
Where good ideas come from
Steven Johnson argues that most good ideas come from people or organizations not interested in making money. He is probably right, but his line of argumentation not strong.

The scientific community and philosophy

Against peer review
Some arguments against anonymous peer review of scientific articles and suggestions for improvements.
Honorary authorship of scientific articles
If every author would be fully accountable for the entire text of a scientific article, the organisers/managers of science would become jobless and the instrumentalists would no longer would give out their data. I propose to make partial or honorary authorship explicit instead.
The library network - from book archiving to knowledge facilitator
The title already says most, by seeing a university library as a network of book readers and facilitating their interaction, scientists could innovate much better.
On the philosophy of language
Our language does not seriously limit our perception of ourselves and our world; it is highly flexible and allows for creative use.

Society and politics

Plan B for our planet
Instead of the Kyoto protocol, maybe we should change the rules of the game and give regions that want to reduce their carbon emissions the freedom to do so without punishment.
Where good ideas come from
Steven Johnson argues that most good ideas come from people or organizations not interested in making money. He is probably right, but his line of argumentation not strong.
Freedom to learn
Forcing children to learn stifles their innate motivation to teach themselves and may thus be counter productive.

Life-style

The paleo culture
After the Ancestral Health Symposium 2012, as discussion started about the sometimes self-centred culture of the paleo community
Paleo and fruitarian lifestyles have a lot in common
A comparison of the main ideas and recommendations of these two lifestyles.
Natural cures for asthma?
Some ideas for natural ways, which helped me cure my asthma.
Sleep and diversity
Differences in sleeping times, from early bird to night owls, may provide security advantages.
Is obesity bias evolutionary?
A critical comment on an article, which states that humans have an intrinsic propensity to eat too much.